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kirill115 [55]
3 years ago
6

A symbol used to represent an unknown value or quantity

Mathematics
2 answers:
bixtya [17]3 years ago
6 0

Variables represent unknowns.  They are often letters (like x) but can also be other symbols like Greek numerics.

Hope this helps!!

laila [671]3 years ago
3 0

Answer: he is right it is variables that are the unknown

Step-by-step explanation:

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-2(x+2/3)+1=5 Please somebody help me out there in brainly land
Harrizon [31]
X=-1.8
To solve first use the distributive property to change the equation to -2x+1 1/3+1=5
Then you subtract 1 from 5 so then the equation looks like this: -2x+1 1/3=4
Next subtract 1 1/3 from 4 to get 3.6
then divide it by -2 and you get -1.8
4 0
3 years ago
Can you help me please please correct my
Ostrovityanka [42]

Answer:

a = m/c

~~~~~~~~~~~~~~~~~~~~~~~

m=ca

divide both sides by c

you get a = m/c

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Subtract <br><br> 28 1/27 - 2/9=
OLga [1]

Answer:

<u>1759</u><u>. </u><u> </u> or 27 58/63

63

hope it helps

5 0
3 years ago
During a catered lunch an average of 4 cups of tea are poured per minute. This lunch will last 2 hours. How many gallons of tea
zzz [600]
4 cups are poured every minute...there are 60 minutes in 1 hr...so for 2 hrs, there is 120 minutes...at 4 per minute = 120 * 4 = 480 cups in 2 hrs

16 cups = 1 gal
480 cups = 480/16 = 30 gallons <===
4 0
3 years ago
Please can someone show me how to work this out step by step without a calculator
Artyom0805 [142]
2\sqrt8\times8\sqrt2=(2\times8)\sqrt{8\times2}=16\sqrt{16}=16\times4=64

Alternatively, you can write radicals as rational exponents, so that you get

2\sqrt8\times8\sqrt2=2\tiems8^{1/2}\times8\times2^{1/2}=2^{3/2}8^{3/2}

Then recalling that 2^3=8, you have

2^{3/2}8^{3/2}=2^{3/2}(2^3)^{3/2}=2^{3/2}2^{9/2}=2^{12/2}=2^6=64
5 0
4 years ago
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